GSXftw
10+ Year Contributor
- 381
- 78
- Dec 16, 2009
-
Medford,
Oregon
Like the title says, watch my timing at idle, this car will not idle solid while this timing issue is going on. It doesnt follow the timing tables and is getting different numbers. Its been doing this for a month, have many logs but here is the most recent, where I was driving home and upgraded all of my engine grounds. Ive tried locking in open loop, its not fuel trim or AFR, and the wideband flucuating seems to be more of an effect than cause. ISC works proper, just cant keep up with the timing flucating.
1). Any boost, vac, or exhaust leaks? Boost leak tested 5psi above your max boost with no leaks? yes
2). Verified mechanical timing? yes
3). Verified base timing? 5
4). Ignition system COP or Stock Coil:stock
Wire brand and Age:msd 6 mo
Spark Plug brand, type and Gap:ngk bpr7es .028
5). Motor health (Compression Test) Cylinder 1:170
Cylinder 2:168
Cylinder 3:170
Cylinder 4:169
6). Performed basic throttle body adjustments? Idle Switch: link sim
Throttle Cable:yes
TPS:yes
BISS:yes
7). Compression ratio
8.5
8). Any known bad sensors or brittle wiring?
no
9). Any DTC/CEL codes?
no
10). Electrical system Car off (not running):
Car running:
what about it?
11). Base fuel pressure and injector values Base Fuel Pressure:42
Injector Size (cc/min):1050
12). Properly calibrated and configured wideband sensor Sensor Brand:
aem
Calibration Date:11/25/14
13). Type of fuel Type:92
Percent of Ethanol:10
14). Watched ECMlink how-to videos?
yes
1). Any boost, vac, or exhaust leaks? Boost leak tested 5psi above your max boost with no leaks? yes
2). Verified mechanical timing? yes
3). Verified base timing? 5
4). Ignition system COP or Stock Coil:stock
Wire brand and Age:msd 6 mo
Spark Plug brand, type and Gap:ngk bpr7es .028
5). Motor health (Compression Test) Cylinder 1:170
Cylinder 2:168
Cylinder 3:170
Cylinder 4:169
6). Performed basic throttle body adjustments? Idle Switch: link sim
Throttle Cable:yes
TPS:yes
BISS:yes
7). Compression ratio
8.5
8). Any known bad sensors or brittle wiring?
no
9). Any DTC/CEL codes?
no
10). Electrical system Car off (not running):
Car running:
what about it?
11). Base fuel pressure and injector values Base Fuel Pressure:42
Injector Size (cc/min):1050
12). Properly calibrated and configured wideband sensor Sensor Brand:
aem
Calibration Date:11/25/14
13). Type of fuel Type:92
Percent of Ethanol:10
14). Watched ECMlink how-to videos?
yes